CN103643800A - Lifting installation system for buckling restrained supporting member and construction method thereof - Google Patents
Lifting installation system for buckling restrained supporting member and construction method thereof Download PDFInfo
- Publication number
- CN103643800A CN103643800A CN201310671465.5A CN201310671465A CN103643800A CN 103643800 A CN103643800 A CN 103643800A CN 201310671465 A CN201310671465 A CN 201310671465A CN 103643800 A CN103643800 A CN 103643800A
- Authority
- CN
- China
- Prior art keywords
- buckling
- bracing member
- restrained bracing
- restrained
- construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention provides a lifting installation system for a buckling restrained supporting member and a construction method of the lifting installation system for the buckling restrained supporting member. In the installation system, chain blocks used for lifting the buckling restrained supporting member are fixed to a beam or supporting stand columns of the buckling restrained supporting member to be installed respectively through hanging plates or temporary supports. The hanging plates and the temporary supports are simple in structure and can be used repeatedly, construction is convenient, manpower and material resources are saved, and the problems that in the current construction, the rate of progress is low, the construction can be finished only with cooperation of several persons, waste of manpower and material resources is caused, and engineering cost is high are solved. The invention further provides the normative construction method. The problems that in the prior art, construction specifications are relatively lacked, and construction methods are different and operation are not standard in current construction are solved. In addition, lifting installation performed on the buckling restrained supporting member can be finished under the condition of narrow spaces, and the problems that in the current construction, the chain blocks are applied with high requirements for spaces of construction environments, and adaptability to the narrow spaces of construction is not high are solved.
Description
Technical field
The invention belongs to building engineering construction application, particularly a kind of erection & lift system and construction method thereof of buckling-restrained bracing member.
Background technology
Buckling-restrained bracing member is called again anti-buckling support, without bonding, supports, and is to improve and form on the basis of the conventional steel brace of hysteretic energy ability variation after flexing and flexing easily occurs pressurized, belongs to a kind of novel metal yield type damper.Working mechanism is to utilize low-yield core axial compression, tension all can surrender and dissipation earthquake or the wind energy that shakes, be the passive displacement relationship type of the good class of energy consumption effect damper in current all kinds of dampers for building, can be widely used in the seismic hardening improvement project of all kinds of new buildings and existed building.The structural research of buckling-restrained bracing member at present has obtained certain effect, but actual construction application is less, and in existing construction, construction method is different, operates lack of standardization; Progress is slow, and needs many people coordinative construction just can complete, and causes the waste of manpower and materials, and engineering cost is higher; In addition, it is higher that in existing construction, jack is applied the space requirement of right construction environment, and the situation applicability narrow and small for construction space is not strong.
Summary of the invention
Main purpose of the present invention is to provide a kind of erection & lift system and construction method thereof of buckling-restrained bracing member, solve that job specfication in prior art lacks relatively, in existing construction construction method different, operate nonstandard problem; Solve simultaneously the progress that exists in construction at present slowly, need many people coordinative construction just can complete, cause the higher problem of waste, engineering cost of manpower and materials; In addition, also solve the space requirement of the right construction environment of the application of jack in existing construction higher, for the narrow and small not strong problem of situation applicability of construction space.
For realizing above-mentioned technical purpose, the technical scheme that the present invention takes is:
A kind of erection & lift system of buckling-restrained bracing member, comprise crossbeam and the support post of having constructed, for promoting jack and the mobile crane of buckling-restrained bracing member, play catching device and the portable scaffold of safety protection function, the form that described buckling-restrained bracing member supports with herringbone is connected between crossbeam and support post, on described crossbeam, have and to have constructed, for the upper node of buckling-restrained bracing member is installed, on described support post, have and to have constructed, for the lower node of buckling-restrained bracing member is installed, it is characterized in that: on described buckling-restrained bracing member pre-installation position, near on the place of node and lower node fixedly mount respectively a jack, the jack of described upper Nodes is fixed on crossbeam by the link plate being welded on crossbeam temporarily, has a hook that articulates jack on described link plate at least, the jack at described lower node place is articulated between support post and lower node by a falsework that can reuse, and has a jack fixed hook on described falsework at least.
Described falsework is a door-shaped frame, and an edge-on bar of described door-shaped frame is welded on support post, and the bottom of two vertical rods is all welded on the top of lower node temporarily; One side of its horizon bar extends to form mounting part, has 1～4 equally distributed jack fixed hook on described mounting part; There is support bar the inside of described door-shaped frame.
The length of described falsework is 900～1500mm, and wide is 400～600mm, and mounting part length is 200～400mm.
As yes-no decision of the present invention, described support bar is horizontal diagonal brace or bridging.
As yes-no decision of the present invention, described falsework is the steelframe that channel-section steel, angle steel or i iron are welded.
A buckling-restrained bracing member construction method of utilizing the erection & lift system of above-mentioned buckling-restrained bracing member to carry out, is characterized in that: the method concrete steps are:
The installation of step 8, buckling-restrained bracing member: before fixed installation, again Support Position is proofreaied and correct, after correction, spot welding is carried out in support two ends and fix, the lower end node that then welding is supported, after the node weld of lower end, the upper end node of welding;
Step 10, delivery receiving acceptance: to the steel that adopt first, welding material, welding method, postweld head treatment etc., should carry out qualification of welding procedure, qualification of welding procedure should be by the existing < < construction steel structure welding code > > of country.
Compared with prior art, technical advantage of the present invention is: provide a kind of installation of buckling restrained brace to promote system, crossbeam or support post near the upper lower node that is separately fixed at buckling-restrained bracing member to be installed for promoting the jack of buckling-restrained bracing member by link plate and falsework comprising in installation system, described link plate and falsework simple structure, be convenient to safeguard, can reuse, easy construction, manpower and materials have been saved, solved the progress existing in current construction slow, need many people coordinative construction just can complete, cause the waste of manpower and materials, the problem that engineering cost is higher, a kind of construction method of standard has been proposed, solved that job specfication in prior art lacks relatively, in existing construction construction method different, operate nonstandard problem, in addition, the erection & lift of buckling-restrained bracing member of the present invention can complete the in the situation that of narrow space, and the space requirement that solves the right construction environment of the application of jack in existing construction is higher, for the narrow and small not strong problem of situation applicability of construction space.The present invention can guarantee construction speed for the invaluable experience of using for reference, applying for the construction of buckling-restrained bracing member of the same type from now on provides, and has brought obvious economic benefit, installs and only needs three people greatly to save the duration.
Accompanying drawing explanation
Fig. 1 is the erection & lift construction method construction schematic diagram of the buckling-restrained bracing member that the present invention relates to;
Fig. 2 is the structural representation of an embodiment of the falsework 6 that the present invention relates to;
Fig. 3 is the construction process figure of the erection & lift construction method of the buckling-restrained bracing member that the present invention relates to.
1-buckling-restrained bracing member, 2-support post, 3-crossbeam, 4-jack, 5-link plate, 6-falsework, 61-support bar, 62-horizon bar, 63-mounting part, 64-vertical rod, the upper node of 7-, 8-lower node, 9-hanger.
The specific embodiment
The present invention does not limit the structure of buckling-restrained bracing member 1, it is that 235MPa, the trade mark are that Q235B steel are as central layer that the buckling-restrained bracing member relating in this embodiment adopts yield strength, and material is rechecked, review requirements are: the yield tensile ratio of core should not be greater than 0.8, elongation rate should be greater than 30%, should have 27J impact toughness merit under normal temperature.All gusset plate materials that are connected with buckling-restrained bracing member 1 are all Q345B.
As depicted in figs. 1 and 2, a kind of erection & lift system of buckling-restrained bracing member, comprise the crossbeam 3 and support post 2 of having constructed, for promoting jack 4 and the mobile crane of buckling-restrained bracing member 1, play the catching device of safety protection function and portable scaffold etc., described buckling-restrained bracing member 1 is connected between crossbeam 3 and support post 2 with herringbone supporting form, on described crossbeam 3, have and to have constructed, for the upper node 7 of buckling-restrained bracing member 1 is installed, on described support post 2, have and to have constructed, for the lower node 8 of buckling-restrained bracing member 1 is installed, it is characterized in that: above the pre-installation position of described buckling-restrained bracing member 1, at upper node 7 places and lower node 8 places, fixedly mount respectively a jack 4, the jack 4 at described upper node 7 places is fixed on crossbeam 3 by the link plate 5 being welded on crossbeam 3 temporarily, at least fixes one for articulating the hook of jack 4 on described link plate 5, the jack 4 at described lower node 8 places is fixed on support post 2 by the falsework 6 that can reuse, and at least fixes a jack fixed hook 65 on described falsework 6.Described falsework 6 is that two vertical rod 64 length do not wait, meet and be just against the top of lower node 8 and the door-shaped frame linking together with lower node 8 tops, and vertical rod 64 of described door-shaped frame is fixed on support post 2, and there is support bar 61 its inside.The length of described door-shaped frame is 900～1500mm, and width is 400～600mm, and the outside of horizon bar 62 extends to form the mounting part 63 of 200～400mm, has 1～4 equally distributed hook on described mounting part 63.
As yes-no decision of the present invention, described support bar 61 can be horizontal diagonal brace or bridging.
As yes-no decision of the present invention, described falsework 6 can be the steelframe that channel-section steel, angle steel or i iron are welded.
If Fig. 3 is the construction process figure of the erection & lift construction method of above-mentioned buckling-restrained bracing member 1, the present embodiment adopts 84 buckling restrained braces altogether, in advance the post of buckling restrained brace position, beam place pre-buried steel connected node are being set, the concrete steps of erection & lift construction are:
The installation of step 8, buckling-restrained bracing member 1: before fixed installation, again Support Position is proofreaied and correct, after correction, spot welding is carried out in support two ends and fix, the lower end node that then welding is supported, after the node weld of lower end, the upper end node of welding; Weld seam is butt weld, and Weld quality level is secondary; All buckling-restrained bracing members 1 are lifted separately, and be successively in place one by one;
Step 10, delivery receiving acceptance: to the steel that adopt first, welding material, welding method, postweld head treatment etc., should carry out qualification of welding procedure, qualification of welding procedure should be by the existing < < construction steel structure welding code > > of country.
Claims (6)
1. the erection & lift system of a buckling-restrained bracing member, comprise the crossbeam (3) and support post (2) of having constructed, for promoting jack (4) and the mobile crane of buckling-restrained bracing member, play catching device and the portable scaffold of safety protection function, the form that described buckling-restrained bracing member (1) supports with herringbone is connected between crossbeam (3) and support post (2), on described crossbeam (3), have and to have constructed, for the upper node (7) of buckling-restrained bracing member is installed, on described support post (2), have and to have constructed, for the lower node (8) of buckling-restrained bracing member is installed, it is characterized in that: on described buckling-restrained bracing member pre-installation position, near on the place of node (7) and lower node (8) fixedly mount respectively a jack (4), the jack of described upper Nodes (4) is fixed on crossbeam (3) above by the link plate (5) being welded on crossbeam temporarily, has a hook that articulates jack (4) on described link plate (5) at least, the jack (4) that described lower node (8) is located is articulated between support post (2) and lower node (8) by a falsework that can reuse (6), has a jack fixed hook (65) on described falsework (6) at least.
2. the erection & lift system of a kind of buckling-restrained bracing member according to claim 1, it is characterized in that: described falsework (6) is a door-shaped frame, it is upper that one edge-on bar (64) of described door-shaped frame is welded on support post (2), and the bottom of two vertical rods (64) is all welded on the top of lower node (8) temporarily; One side of its horizon bar (62) extends to form mounting part (63), has 1～4 equally distributed jack fixed hook (65) on described mounting part (63); There is support bar (61) inside of described door-shaped frame.
3. the erection & lift system of a kind of buckling-restrained bracing member according to claim 2, is characterized in that: described in: the length of described falsework (6) is 900～1500mm, and wide is 400～600mm, and mounting part (63) length is 200～400mm.
4. the erection & lift system of a kind of buckling-restrained bracing member according to claim 2, is characterized in that: described support bar (61) is horizontal diagonal brace or bridging.
5. the erection & lift system of a kind of buckling-restrained bracing member according to claim 1, is characterized in that: the steelframe that described falsework (6) is welded for channel-section steel, angle steel or i iron.
6. a buckling-restrained bracing member construction method of utilizing the erection & lift system of the buckling-restrained bracing member described in claim 1～5 any one to carry out, is characterized in that: the method concrete steps are:
Step 1, carry out land clearing, carry out preparation of construction;
Step 2, buckling-restrained bracing member (1) is transported to straight job site;
Step 3, welding hanger (9): in upper 1/3 horizontal place's two hangers of welding (9) conduct of every buckling-restrained bracing member (1), support suspension centre, the stacking number of plies after welding hanger (9) must not be over four layers, adopt overlapping intersection to stack, the second layer rotates 90 degree on first floor;
Step 4, link plate (5) is installed: on the crossbeam of buckling-restrained bracing member to be installed (1), upper Nodes installs link plate (5);
Step 4, the falsework (6) of jack (4) is installed: between the support post of buckling-restrained bracing member to be installed and lower node, falsework (6) is installed;
Step 5, upper lower node is checked: comprise the off normal of node and working drawing and out-of-plane skew that gusset plate occurs in installation process etc., after existing deviation to take appropriate measures to be rectified a deviation, correct, can start the lifting of buckling restrained brace;
Step 6, with mobile crane, buckling-restrained bracing member (1) is hung on the nearer floor in installation site: lift first in advance, detect after overall operation safety, hang the hanger (9) on buckling-restrained bracing member (1), slow lifting moves to buckling-restrained bracing member (1) and hangs on the nearer floor in installation site, lifting is the not contour lifting in two ends, first tractive buckling-restrained bracing member (1) lower end reaches lower node (8) position, and then upper end is in place;
Step 7, with jack (4), coordinate catching device etc. that buckling-restrained bracing member lifting is put in place: to determine the lower end of installing of buckling-restrained bracing member, the suspension hook of upper and lower two jacks is hung respectively to two corresponding hangers of buckling-restrained bracing member, after lifting, adjust two jacks simultaneously, make buckling-restrained bracing member (1) correspondence enter lower node and carry out temporary fixed;
The installation of step 8, buckling-restrained bracing member: again Support Position is proofreaied and correct before fixed installation, after correction, spot welding is carried out in support two ends to be fixed, then the lower end node that welding is supported, after the node weld of lower end, the upper end node of welding, lifts separately all buckling-restrained bracing members again, is successively in place one by one;
Step 9, seam inspection detect: attachment weld is carried out to defect detecting test, and should reach secondary flaw detection requirement;
Step 10: delivery receiving acceptance: to the steel that adopt first, welding material, welding method, postweld head treatment etc., should carry out qualification of welding procedure, qualification of welding procedure should be by the existing < < construction steel structure welding code > > of country.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671465.5A CN103643800B (en) | 2013-12-12 | 2013-12-12 | The erection & lift system of buckling-restrained bracing member and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671465.5A CN103643800B (en) | 2013-12-12 | 2013-12-12 | The erection & lift system of buckling-restrained bracing member and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103643800A true CN103643800A (en) | 2014-03-19 |
| CN103643800B CN103643800B (en) | 2016-04-20 |
Family
ID=50249077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310671465.5A Active CN103643800B (en) | 2013-12-12 | 2013-12-12 | The erection & lift system of buckling-restrained bracing member and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103643800B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982046A (en) * | 2014-04-11 | 2014-08-13 | 中建四局第六建筑工程有限公司 | Lifting and installation method of buckling restrained braces |
| CN104818856A (en) * | 2015-04-21 | 2015-08-05 | 中国十七冶集团有限公司 | Mounting method of roof thin-wall Z-shaped purline |
| CN105952229A (en) * | 2016-05-24 | 2016-09-21 | 成都市第建筑工程公司 | Installation and construction method for energy-dissipating type buckling-restrained brace |
| CN106193295A (en) * | 2016-08-29 | 2016-12-07 | 浙江海迈材料科技有限公司 | A kind of heavy support |
| CN106760841A (en) * | 2016-12-01 | 2017-05-31 | 北京城建建设工程有限公司 | A kind of construction method of buckling restrained brace structure |
| CN109881959A (en) * | 2019-03-25 | 2019-06-14 | 山西省工业设备安装集团有限公司 | A kind of buckling-restrained device of practical building structure and its construction method |
| US10499638B2 (en) | 2013-11-26 | 2019-12-10 | Upl Limited | Method for controlling rust |
| CN110905220A (en) * | 2019-12-17 | 2020-03-24 | 中航天建设工程集团有限公司 | Installation and construction method of anti-buckling energy dissipation brace of reinforced concrete structure |
| CN111042538A (en) * | 2019-11-26 | 2020-04-21 | 上海宝冶集团有限公司 | Hoisting and mounting method of buckling restrained brace |
| CN112774845A (en) * | 2020-12-17 | 2021-05-11 | 中信重工机械股份有限公司 | Semi-mobile crushing station receiving hopper mounting process |
| CN115822117A (en) * | 2022-11-30 | 2023-03-21 | 中冶(上海)钢结构科技有限公司 | Construction method for steel structure buckling restrained brace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0578704U (en) * | 1992-03-30 | 1993-10-26 | 清水建設株式会社 | Earthquake-resistant reinforced brace |
| JP3851563B2 (en) * | 2002-01-09 | 2006-11-29 | 大成建設株式会社 | Frame reinforcement structure and its construction method |
| CN201458600U (en) * | 2009-07-29 | 2010-05-12 | 湖南省工业设备安装有限公司 | Floating crane device for making middle-small sized groove bodies or tank bodies |
| JP2010236308A (en) * | 2009-03-31 | 2010-10-21 | Taisei Corp | Method for mounting damping brace |
| CN103187690A (en) * | 2013-02-21 | 2013-07-03 | 华北电网有限公司大同超高压供电公司 | Overhaul platform for series compensation device capacitor |
-
2013
- 2013-12-12 CN CN201310671465.5A patent/CN103643800B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0578704U (en) * | 1992-03-30 | 1993-10-26 | 清水建設株式会社 | Earthquake-resistant reinforced brace |
| JP3851563B2 (en) * | 2002-01-09 | 2006-11-29 | 大成建設株式会社 | Frame reinforcement structure and its construction method |
| JP2010236308A (en) * | 2009-03-31 | 2010-10-21 | Taisei Corp | Method for mounting damping brace |
| CN201458600U (en) * | 2009-07-29 | 2010-05-12 | 湖南省工业设备安装有限公司 | Floating crane device for making middle-small sized groove bodies or tank bodies |
| CN103187690A (en) * | 2013-02-21 | 2013-07-03 | 华北电网有限公司大同超高压供电公司 | Overhaul platform for series compensation device capacitor |
Non-Patent Citations (3)
| Title |
|---|
| 梁建智: "《建筑结构吊装》", 30 November 1991, article "《滑车、滑车组、倒链和手扳葫芦》", pages: 32-47 - 270-292 * |
| 王超: "《人民日报社报刊综合业务楼屈曲约束支撑施工技术》", 《施工技术》, vol. 42, no. 9, 10 May 2013 (2013-05-10), pages 57 - 60 * |
| 衣书磊等: "《屈曲约束支撑施工技术》", 《门窗》, no. 11, 20 November 2013 (2013-11-20), pages 101 - 102 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10499638B2 (en) | 2013-11-26 | 2019-12-10 | Upl Limited | Method for controlling rust |
| CN103982046A (en) * | 2014-04-11 | 2014-08-13 | 中建四局第六建筑工程有限公司 | Lifting and installation method of buckling restrained braces |
| CN104818856A (en) * | 2015-04-21 | 2015-08-05 | 中国十七冶集团有限公司 | Mounting method of roof thin-wall Z-shaped purline |
| CN104818856B (en) * | 2015-04-21 | 2017-01-18 | 中国十七冶集团有限公司 | Mounting method of roof thin-wall Z-shaped purline |
| CN105952229A (en) * | 2016-05-24 | 2016-09-21 | 成都市第建筑工程公司 | Installation and construction method for energy-dissipating type buckling-restrained brace |
| CN106193295B (en) * | 2016-08-29 | 2018-12-07 | 浙江海迈材料科技有限公司 | A kind of heavy type bracket |
| CN106193295A (en) * | 2016-08-29 | 2016-12-07 | 浙江海迈材料科技有限公司 | A kind of heavy support |
| CN106760841A (en) * | 2016-12-01 | 2017-05-31 | 北京城建建设工程有限公司 | A kind of construction method of buckling restrained brace structure |
| CN109881959A (en) * | 2019-03-25 | 2019-06-14 | 山西省工业设备安装集团有限公司 | A kind of buckling-restrained device of practical building structure and its construction method |
| CN111042538A (en) * | 2019-11-26 | 2020-04-21 | 上海宝冶集团有限公司 | Hoisting and mounting method of buckling restrained brace |
| CN110905220A (en) * | 2019-12-17 | 2020-03-24 | 中航天建设工程集团有限公司 | Installation and construction method of anti-buckling energy dissipation brace of reinforced concrete structure |
| CN110905220B (en) * | 2019-12-17 | 2024-06-04 | 中航天建设工程集团有限公司 | Reinforced concrete structure buckling-restrained energy-dissipation brace installation construction method |
| CN112774845A (en) * | 2020-12-17 | 2021-05-11 | 中信重工机械股份有限公司 | Semi-mobile crushing station receiving hopper mounting process |
| CN112774845B (en) * | 2020-12-17 | 2022-03-29 | 中信重工机械股份有限公司 | Semi-mobile crushing station receiving hopper mounting process |
| CN115822117A (en) * | 2022-11-30 | 2023-03-21 | 中冶(上海)钢结构科技有限公司 | Construction method for steel structure buckling restrained brace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103643800B (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103643800B (en) | The erection & lift system of buckling-restrained bracing member and construction method thereof | |
| CN106939707B (en) | A kind of restricted clearance large-scale steel structure supporting platform from method for improving | |
| CN104929373B (en) | Large span Square Steel Tubes Truss and its accumulation slippage construction method | |
| CN103291076B (en) | Multilayer steel truss fragmented reverse hoisting construction method in arc-shaped frame | |
| CN104088467B (en) | A kind of large Steel Cantilever truss structure high-altitude construction Deformation monitoring method | |
| CN206692235U (en) | A kind of steel structure dome lifts by crane erecting device | |
| CN103993728B (en) | A kind of assembling shaped steel is encorbelmented protection canopy | |
| CN105442839A (en) | Erecting method of cantilever structure formwork bent | |
| CN204644884U (en) | High pier over-form construction reinforced bar installs mobile stock | |
| CN205775852U (en) | Acting force conversion support for top of steel structure supporting jig frame | |
| CN214740171U (en) | Ancient building wall body hoist and mount migration device | |
| CN102777050B (en) | Assembly type jig frame for longspan pipe truss roof girder | |
| CN213836318U (en) | Bridge floor wet joint hangs mould structure | |
| CN106759909A (en) | Bearing structure system and its construction method are hung up under one kind | |
| CN212866793U (en) | Assembled construction elevator stops layer platform | |
| CN105952129B (en) | Elevator shaft combined type integral lifting operation platform and construction method thereof | |
| CN110318344B (en) | Novel steel box girder No. 0 block support and No. 0 block erection construction method | |
| CN104499706A (en) | Elevator well template platform and construction method thereof | |
| CN115306137B (en) | Operation platform structure for installing suspended ceiling at bottom of high-altitude corridor and construction method thereof | |
| CN102635070A (en) | Mutual-pulling type vertical turning construction method for steel towers of cable-stayed bridge | |
| CN206220534U (en) | The pump line support meanss of concrete pumping equipment | |
| CN102383376B (en) | Ground moulding and integral hoisting method for large-tonnage steel bar bound finished product member | |
| CN209874434U (en) | Simple and easy scaffold frame of encorbelmenting of building high latitude | |
| CN210289075U (en) | Adjustable elevator shaft operating platform system that can have enough to meet need | |
| CN210563531U (en) | Steel structure support for building protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |